1 Features

• Input voltage range: 1.8 V to 5.5 V, down to 1.6 V

after start-up

• Output voltage up to 28 V

• Integrated power diode and isolation switch

• 980-mA (typical) switch current

• Up to 85% efficiency at 3.6-V input and 12-V

output

• ±2.5% output voltage accuracy

• Power save operation mode at light load

• Internal 7-ms soft start time

• True disconnection between input and output

during shutdown

• Output short circuit protection

• Output overvoltage protection

• Thermal shutdown protection

• 3-mm × 3-mm SOT23-6 package

• Create a custom design using the TLV61046A with

the WEBENCH® Power Designer

2 Applications

• PMOLED power supply

• LCD panel

• Wearable devices

• Portable medical equipment

• Sensor power supply

3 Description

The TLV61046A is a highly-integrated boost converter

designed for applications such as PMOLED panel,

LCD bias supply, and sensor module. The

TLV61046A integrates a 30-V power switch, an input

to output isolation switch, and a rectifier diode. It can

output up to 28 V from input of a Li+ battery or two

alkaline batteries in series.

The TLV61046A operates with a switching frequency

at 1.0 MHz. This allows the use of small external

components. The TLV61046A has an internal default

12-V output voltage setting by connecting the FB pin

to the VIN pin. Thus it only needs three external

components to get 12-V output voltage. The

TLV61046A has typical 980-mA switch current limit. It

has 7-ms built-in soft start time to reduce the inrush

current. When the TLV61046A is in shutdown mode,

the isolation switch disconnects the output from input

to minimize the leakage current. The TLV61046A also

implements output short circuit protection, output

overvoltage protection, and thermal shutdown.

The TLV61046A is available in a 6-pin 3-mm x 3-mm

SOT23-6 package.